If you factor 27x^3+1 in form (a-b)(a^2+ab+b^2) what is the value of a?

3x

Step-by-step explanation:

i took the test and got it right

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2